Top 10 Cars with Highest Depreciation Rate Published on June 26, 2019 in Top 10 by Guillaume Rivard Photo: Photo: Mercedes-Benz A new car that loses its value faster than most is a problem for owners, but a great deal for those seeking a lightly used model. A recent study by American research firm iSeeCars.com reveals that the average vehicle depreciates 38.2 percent after three years. Some will be worth less than half of their original value. Also: Top 10 Vehicles Driven the Most by Their Owners Also: Top 10 Vehicles Driven the Least by Their Owners What are the top 10 fastest-depreciating cars on the market right now? Interestingly, the entire list is comprised of luxury sedans, which are often leased for three years and then resold in the used car marketplace without an equal amount of customer demand.